[GRASS-user] Extracting line heights from 3d vectors

[Moritz Lennert]

On 28/11/08 19:57, Nick Cahill wrote:
> Hi all,
> 
> I have a series of contour vector maps imported from a CAD program 
> (Microstation). The CAD maps were in 3d, and the 3d information was 
> successfully imported into GRASS, so the vectors have line heights as 
> well as length, etc. Now I need to export these into shapefiles. When I 
> do this, all the other useless CAD data like line color, style, weight, 
> etc. is exported as attributes in the .dbf file, but line height is not 
> -- it is not a field in the mySQL database but is part of the geometry 
> of the line, if I understand what's going on here correctly. Is there a 
> way to transfer line height into the attribute table so I can access and 
> export it? 

v.to.db option=coor ?

Moritz